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/*
ctdb test harness
Copyright (C) Andrew Tridgell 2006
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "includes.h"
#include "lib/events/events.h"
#include "system/filesys.h"
#include "popt.h"
enum my_functions {FUNC_SORT=1, FUNC_FETCH=2};
static int int_compare(int *i1, int *i2)
{
return *i1 - *i2;
}
/*
add an integer into a record in sorted order
*/
static int sort_func(struct ctdb_call_info *call)
{
if (call->call_data == NULL ||
call->call_data->dsize != sizeof(int)) {
return CTDB_ERR_INVALID;
}
call->new_data = talloc(call, TDB_DATA);
if (call->new_data == NULL) {
return CTDB_ERR_NOMEM;
}
call->new_data->dptr = talloc_size(call,
call->record_data.dsize +
call->call_data->dsize);
if (call->new_data->dptr == NULL) {
return CTDB_ERR_NOMEM;
}
call->new_data->dsize = call->record_data.dsize + call->call_data->dsize;
memcpy(call->new_data->dptr,
call->record_data.dptr, call->record_data.dsize);
memcpy(call->new_data->dptr+call->record_data.dsize,
call->call_data->dptr, call->call_data->dsize);
qsort(call->new_data->dptr, call->new_data->dsize / sizeof(int),
sizeof(int), (comparison_fn_t)int_compare);
return 0;
}
/*
ctdb call function to fetch a record
*/
static int fetch_func(struct ctdb_call_info *call)
{
call->reply_data = &call->record_data;
return 0;
}
/*
main program
*/
int main(int argc, const char *argv[])
{
struct ctdb_context *ctdb;
struct ctdb_db_context *ctdb_db;
const char *nlist = NULL;
const char *transport = "tcp";
const char *myaddress = NULL;
int self_connect=0;
int daemon_mode=0;
struct poptOption popt_options[] = {
POPT_AUTOHELP
{ "nlist", 0, POPT_ARG_STRING, &nlist, 0, "node list file", "filename" },
{ "listen", 0, POPT_ARG_STRING, &myaddress, 0, "address to listen on", "address" },
{ "transport", 0, POPT_ARG_STRING, &transport, 0, "protocol transport", NULL },
{ "self-connect", 0, POPT_ARG_NONE, &self_connect, 0, "enable self connect", "boolean" },
{ "daemon", 0, POPT_ARG_NONE, &daemon_mode, 0, "spawn a ctdb daemon", "boolean" },
POPT_TABLEEND
};
int opt;
const char **extra_argv;
int extra_argc = 0;
int i, ret;
poptContext pc;
struct event_context *ev;
struct ctdb_call call;
pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
default:
fprintf(stderr, "Invalid option %s: %s\n",
poptBadOption(pc, 0), poptStrerror(opt));
exit(1);
}
}
/* setup the remaining options for the main program to use */
extra_argv = poptGetArgs(pc);
if (extra_argv) {
extra_argv++;
while (extra_argv[extra_argc]) extra_argc++;
}
if (nlist == NULL || myaddress == NULL) {
printf("You must provide a node list with --nlist and an address with --listen\n");
exit(1);
}
ev = event_context_init(NULL);
/* initialise ctdb */
ctdb = ctdb_init(ev);
if (ctdb == NULL) {
printf("Failed to init ctdb\n");
exit(1);
}
if (self_connect) {
ctdb_set_flags(ctdb, CTDB_FLAG_SELF_CONNECT);
}
if (daemon_mode) {
ctdb_set_flags(ctdb, CTDB_FLAG_DAEMON_MODE);
}
/* this flag is only used by test code and it makes ctdb_start() block until all
nodes have connected.
until we do better recovery and cluster rebuild it is probably good to use this flag
in applications.
*/
ctdb_set_flags(ctdb, CTDB_FLAG_CONNECT_WAIT);
ret = ctdb_set_transport(ctdb, transport);
if (ret == -1) {
printf("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* tell ctdb what address to listen on */
ret = ctdb_set_address(ctdb, myaddress);
if (ret == -1) {
printf("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* tell ctdb what nodes are available */
ret = ctdb_set_nlist(ctdb, nlist);
if (ret == -1) {
printf("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* attach to a specific database */
ctdb_db = ctdb_attach(ctdb, "test.tdb", TDB_DEFAULT, O_RDWR|O_CREAT|O_TRUNC, 0666);
if (!ctdb_db) {
printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* setup a ctdb call function */
ret = ctdb_set_call(ctdb_db, sort_func, FUNC_SORT);
ret = ctdb_set_call(ctdb_db, fetch_func, FUNC_FETCH);
/* start the protocol running */
ret = ctdb_start(ctdb);
ZERO_STRUCT(call);
call.key.dptr = discard_const("test");
call.key.dsize = strlen("test")+1;
/* add some random data */
for (i=0;i<10;i++) {
int v = random() % 1000;
call.call_id = FUNC_SORT;
call.call_data.dptr = (uint8_t *)&v;
call.call_data.dsize = sizeof(v);
ret = ctdb_call(ctdb_db, &call);
if (ret == -1) {
printf("ctdb_call FUNC_SORT failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
}
/* fetch the record */
call.call_id = FUNC_FETCH;
call.call_data.dptr = NULL;
call.call_data.dsize = 0;
ret = ctdb_call(ctdb_db, &call);
if (ret == -1) {
printf("ctdb_call FUNC_FETCH failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
for (i=0;i<call.reply_data.dsize/sizeof(int);i++) {
printf("%3d\n", ((int *)call.reply_data.dptr)[i]);
}
talloc_free(call.reply_data.dptr);
/* go into a wait loop to allow other nodes to complete */
ctdb_wait_loop(ctdb);
/*talloc_report_full(ctdb, stdout);*/
/* sleep for a while so that our daemon will remaining alive for the other nodes in the cluster */
sleep(10);
/* shut it down */
talloc_free(ctdb);
return 0;
}
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